Results 11 to 20 of about 238,917 (261)

CSNOMA: Carrier Sense Non-Orthogonal Multiple Access

open access: yesSensors, 2020
In this paper, we investigate the possibility of the cross-layer design of a distributed random access scheme with considering physical (PHY) and multiple access control (MAC) layers, which utilizes the interference cancellation technique. In this regard,
Dong Min Kim, Seong-Lyun Kim
doaj   +1 more source

Proposal of multiple access FMCW radar for inter-radar interference avoidance

open access: yesThe Journal of Engineering, 2019
Inter-radar interference will be a crucial problem when a number of frequency modulated continuous wave (FMCW) radars are densely deployed in future, since it can cause miss detection and false detection of the target due to wideband interference and ...
Mikihiro Kurosawa   +5 more
doaj   +1 more source

Low-Complexity Self-Interference Cancellation for Multiple Access Full Duplex Systems

open access: yesSensors, 2022
Self-interference occurs when there is electromagnetic coupling between the transmission and reception of the same node; thus, degrading the RX sensitivity to incoming signals.
Shachar Shayovitz   +2 more
doaj   +1 more source

Soft Interference Cancellation for Random Coding in Massive Gaussian Multiple-Access

open access: yesEntropy, 2021
In 2017, Polyanskiy showed that the trade-off between power and bandwidth efficiency for massive Gaussian random access is governed by two fundamentally different regimes: low power and high power. For both regimes, tight performance bounds were found by
Ralf R. Müller
doaj   +1 more source

Energy and Rate Allocation for Massive Multiple Access With Interference Cancelation

open access: yesIEEE Access, 2022
This article addresses the problem of energy and code allocation to many users accessing, under spreading-based nonorthogonal multiple access, a wireless node set up with a successive interference cancellation architecture aided by redundancy-check error
Francesc Molina   +3 more
doaj   +1 more source

Multiple access interference rejection code: LS code

open access: yesJournal of Communications and Networks, 2003
A new code, LS code, was proposed for the IMT-2000 CDMA system. The code has special properties during a specific time interval: 1) perfect autocorrelation, and 2) perfect crosscorrelation. Perfect autocorrelation means maximum autocorrelation for zero time-offset and zero autocorrelation for all other times during a specific time interval.
Dong Wook Roh, Dong Ku Kim
openaire   +1 more source

A Multiuser Detection Algorithm in the Uplink SC-FDMA System for Green Communication Network

open access: yesIEEE Access, 2016
The Single-carrier Frequency-Division Multiple Access (SC-FDMA) communication scheme is the key technique in green communications and networking for 5G for the uplink of SC-FDMA multiuser systems due to frequency differences introducing access ...
Peng Bao, Qingyang Guan, Mingxiang Guan
doaj   +1 more source

Link Scheduling Algorithm with Interference Prediction for Multiple Mobile WBANs

open access: yesSensors, 2017
As wireless body area networks (WBANs) become a key element in electronic healthcare (e-healthcare) systems, the coexistence of multiple mobile WBANs is becoming an issue.
Thien T. T. Le, Sangman Moh
doaj   +1 more source

Combining precoding and equalization for interference cancellation in MU-MIMO systems with high density users

open access: yesEURASIP Journal on Wireless Communications and Networking, 2022
In multiple users (MU) multiple input multiple output (MIMO) systems, the non-orthogonal multiple access (NOMA) method can provide multiple access. However, a spectrum efficiency of NOMA method is restricted because of remaining an interference signal of
Nguyen Thu Phuong   +2 more
doaj   +1 more source

Partial Interference and Its Performance Impact on Wireless Multiple Access Networks

open access: yesEURASIP Journal on Wireless Communications and Networking, 2010
To determine the capacity of wireless multiple access networks, the interference among the wireless links must be accurately modeled. In this paper, we formalize the notion of the partial interference phenomenon observed in many recent wireless ...
Ka-Hung Hui   +2 more
doaj   +2 more sources

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